GP and Arka are very leightweighed programs for manipulation of DNA / RNA /
protein sequences. They are designed on one hand to run smoothly on older
machines, and on the other -- to faciliate processing of large numbers of
sequence / data files. GP includes utilities to convert DNA / RNA to protein,
determine codon usage / GC contents, promotor searches, Tm, searching for
restriction sites, converting sequences into numerical representations and much
more.

Debian packages

PowerPC binaries

To run arka, you will also need glibc, gdk and gtk. Most probably, if
you are using a standard Linux distribution, you already have them (and you
definitely do if you are using GNOME or GIMP). If not, check www.gtk.org.